Machine foe polishing papee



4 Sheets-Sheet 1.

(No Model.)

R. WESTPHAL.

I MACHINE FOR POLISHING PAPER, TEXTILE FABRIC, am. No. 274,685.

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N4 PETERS, mic-lithograph. Whhingtcn. D C.

(No Model.) 4 Sheets-Sheet 2.

R. WESTPHAL.

MACHINE FOR POLISHING PAPER, TEXTILE FABRIC, &0.

No'. 274,685. Patented M-ar.27,1883.

I I l 1 I I I .Qk i Q2 1 a QM 1 N WITNESSES: INVENTOR mm. w BY ATTORNEY"N. PETERS. Photo-Lithographer. Washington. [7.42.

4 Sheets-Sheet 3.

(No Model.)

R. WESJTPHAL. V MACHINE FOR POLISHING PAPER, TEXTILE FABRIC, &c. No.274,685.

Patented Mar.27,1883.-

INVENTOR mm B S S E N T I ATTORNEY N Firms, vmqwxm hu, Washington, nu;

(No Model.) T T 4 Sheets-Sheet 4.

R. WESTPHAL. MACHINE EOE POLISHING PAPER, TEXTILE FABRIG,&c. N0.274,685. Patented Mar.27,1883.

' INVENTO I ATTORNEY N, PETERs. Fhnla-Lam har, washingmn, 0.6.

UNIT D STATES PATENT OFFICE,

ROBERT VVESTPHAL, OF BERLIN, GERMANY.

MACHINE FOR POLISHING PAPER, TEXTILE FABRIC, 84 0.

SPECIFICATION forming part of Letters Patent No. 274,685, dated March27, 1883. Application filed January 29, 1883. (No model.)

To all whom it may cancer-n: I

Be it known that I, ROBERT VVESTPHAL, a subject of the Kingdom ofPrussia, residing at the city of Berlin, in the Kingdom of Prussia,German Empire, have invented certain new and useful Improvements inMachines for Polishin g Paper, Textile Fabrics, &c., of which thefollowing is a specification.

This invention has" reference to a machine for polishing thesurface ofpaper, textile fabrics, &c., in a rapid and uniform manner; and itconsists of a number of guide-rollers, of glass or other suitablematerial, over which the fabric is successively drawn, and of smallpolishing-rolls, of similar hard material, which are passed transverselyto the direction of motion of the fabric and pressed down upon the sameby the weight of their supporting-frame. The polishing-rolls aresupported in forks pivoted to the lower ends of spring-acted shanks,which are guided in oscillating brackets secured to thesupporting-frame. Some of the brackets are guided along transverse railsthat are placed at'a slight angle of inclination to the guiderollers, sothat the polishing-rolls are moved in inclined position over the paperor other fabric;

" The invention oonsists,further, of certain details of construction,which will be more fully pointed out hereinafter. v

y In the accompanying drawings, Figure 1 represents a verticallongitudinal section through one-half of my improved machine forpolishing paper, textile fabrics, and similar fabrics. Fig. 2 is avertical transverse section through the entire machine; Fig. 3, a planof one-half of themachine; andFigs.'4, 5, 6, 7, and 8 are details ofsome of the working parts of the same.

Similar letters of reference indicate correspondin g parts.

A represents the supporting-frame of my improved machine for polishingpaper and other fabrics, which is constructed of two symmetricalparts,upon each of which a number of guide-rollers, bb, of glass orother suitable hard material, are supported, that turn in bearings atthe top partof the supporting-frame A. The guide-rollers of each half ofthe frame A are arranged in two groups, each group working in connectionwith a set of guide-rollers, b b, that are arranged so that the paper orother fabric, a, which is to be polished can be conducted simultaneouslyfrom four difi'erent uncirculate in them and keep them cool.

] winding-rollers over the four groups of glass rollers b andguide-rollers b ,arranged on frame, and then between the drawing-rolls wto the winding-up rollers, as shown by the arrows in Fig. 1. A polishingaction is imparted to the surface of the paper or other fabric that ispassedover' the glass rollers b by means of small cylindrical rolls d,which are supported in bearings of fork-shaped frames 71, pivoted to thelower ends of verticalrods l. The rods 1 are guided in bracket-frames f,that are applied by pivot-bolts t to longitudinal beams B B, which arerigidly connected to transverse beams B B. To the beams B B lateralreciprocating motion is imparted by an oscillating lever, as shown inFig. 2, or by any other suitable mechanism. The polishing glass rolls dare moved transversely across the fabric a, that is stretched over theguide-rollers b b, and as they are located transversely to theguide-rollers they exert a polishing action upon those parts of thefabric which are at that time at the upper parts of the rollers b b. Theentire weight of the beams B B is thrown upon the polishing-rolls andutilized for exerting the required pressure upon the fabric tobepolished.

Thepolishing-rolls d d are preferably made of hollow glass cylinders, sothat air can freely They are cushioned by spiral springs 9 in theirbracket-framesf in such a manner that they can readily give" whenpassing over uneven portions of the fabric.

By a fixedor pivoted connection with the rods Z, they can assume eithera horizontal or an inclined position to the guide-rollers b, and canpass either transversely or obliquely over the paper. When an inclinedposition of the polishing-rolls d d is desired,-the fork-shaped supportsit of the rolls are pivoted to the lower ends of the rods Z, whichlatter are guided by transverse parallel rods D,which are supportedobliquelyto the guide-rollers, as shown in Figs. 1 and 3. Thepolishing-rolls (Z of the rods Z, guided between the parallel rods,assume an oblique and inclined position to the rollers b and impart apolishing pressure in oblique lines across the paper, while the fixedhorizontal rolls exert a pressure along straighttransverse lines. By thecrossing of these different lines of pressure a" perfectly smooth anduniform surface is finally obtained. By properly combinin g thedifferentpolishin g-rollsaregular and perfectly'smooth appearance isimparted to a the fabric.

The connect-ion of the polishing-rolls d and their supports is clearlyshown in Figs. 4 and 5. The hollow cylindrical roll dis secured by openbeads to a shaft, 0, which revolves in bearings of the fork-shapedsupport h. The latter is pivoted to the rod 1, which is guided in theupright bracket-frame f, that oscillates on the pivot-bolt t'of beam B.The lower leg, f, of the bracket-frame f is connected by a hinge-joinnfwith the vertical part of the bracket. The hinge-jointf serves also as afulcrum for a lever, m, which is pivotally connected to a screw, it.This latter engages a threaded sleeve, gt, that is capable of axialmotion by an annular groove and a bottom plate of the beam B. Thefulcrumed lever on is extended below the legf of bracket], and servesthereby as a support for t'heleg f. The pressure of the spiral spring 19upon the lower leg, f,-and upon the polishing-roll d is adjusted by thescrew n or entirely dispensed, whenever, for instance, a greaterunevenness or a defective portion occurs in the fabric.

To remove the pressure from the rolls d it is only necessary to exert onthe pivoted end of the lever m adownward pressure, as indicated by thearrow in Fig. 5, which causes the lifting of the legf and the raising ofthe springp. The described motion of the lever m is accomplished bysimply turning the sleeve n, which, for this purpose, isprovided withtwo fingers, a n (Shown in Figs. 5 and 6.) One of these fingers n n isengaged by a slide-piece, 1", when the beam-frame B B arrives at the endof its laterally-reciprocatin g motion, so that an axial motion of thesleeve n in one or the opposite direction takes place, as shown in Fig.

6. If the slide-piece r is in its central position,

the position of the sleeve n is not affected thereby. Consequently it ispossible by the simple shifting of the slide-piece r on its way 1" toaccomplish an axial turning of the sleeve 12. The guide plate or way ris rigidly secured to the frame A of the machine, while the shifting ofthe slide 1' takes place by hand, as required.

For the purpose of bringing gradually every portion of the surface ofthe polishing-roll d into use the same receives, at the end of eachmotion of the reciprocating beam-frame B B, a small turning motionaround its axis. For this purpose a ratchet-wheel, s, is keyed to theshaft 0, as shown in Figs. 4 and 7, and retained by a spring-pawl, s,which prevents the turning of the roll d. The outer laterally-bent endof the spring-pawl s is engaged at the end of the lateral motion of thebeam-frame B B by a tapering check, 8 secured to frame A. The check 8di'sengages the spring-pawl for a moment from the ratchet-wheel s, sothat by the friction of the roll at on the paper the roll is turnedaround its axis until the projection of the pawl s can engage the nextindentation on the ratchet-wheel 8. At the return motion of theframe Bthe bent end of the spring-pawl 8 passes over the top of the cheek swherebyv thespring-pawl is bent, but not released from the ratchet 3.Besides this axial shifting of the roll d, the same can belongitudinally shifted on its shaft 0 by a nut, t, applied to thethreaded opposite end of the shaft.

It may be remarked that some of the rolls d may also be made to rollover the fabric to be polished in the direction of motion of the fabric,or in opposite direction thereto, so that the frictional or polishingaction of the rolls is thereby either diminished or increased.

Fig. 8 shows a modified construction of the mechanism by which thebrackets f may be set in inclined position in place of the transverseguide-rods D D. The bracket f is provided in this case with two arms, ff which move along transverse rails 25, that are inclined in oppositedirection to each other. The beamframe B B is guided in itslaterally-travers ing motion by glass cylinders o v in such a mannerthat as little friction as possible is produced. After the surface ofthe paper or other fabric over the rollers bis polished by the rolls d,the fabric is moved forward over the rollers b by the drawing-rolls w,and the next adjoining portions polished, and so on until the entiresurface of the fabric has been polished.

Having thus described myinvention, I claim as new and desire to secureby Letters Patent- 1. In a machine for polishing paper and otherfabrics, the combination of the guide-rollers b b, of glass or othersuitable hard material, with polishing-rolls d d, arranged transverselyto the guide-rollers b, and with a laterallytraversing beam-frame,B B,supporting the rolls d d, substantially as set forth.

2. In a machine for polishing paper and other fabrics, the combinationof the polishingroll dwith the fork-shaped support h, bracket f, havinghinged lower leg, 1'', cushioningspring 19, and means for raising orlowering the hinged legf, so as to remove or apply polishing pressure tothe roll, substantially asdescribed.

3. The combination of the guide-rollers b,

polishing-rolls d, fork-shaped supports h, pivoted to the rods l,bracket-frames f, pivoted to the beam B, laterally-traversing beam-frameB B, and fixed obliquely-arranged guide-rods D D, substantially as setforth.

4. The combination, with the guide-rollers b, of a laterally-traversingbeam-frame, B B,

guided by glass cylinders '11 v, the supporting- IIS

